I am using Ubuntu 11.10 and am looking for an equivalent to Process Explorer on Linux. There is System Monitor but it's not nearly as good as Process Explorer with all of its detailed information about processes.

Graphical process explorer for Linux. Shows process information:
process tree, TCP IP connections and graphical performance figures for
processes. Aims to mimic Windows procexp from sysinternals, and aims
to be more usable than top and ps.

This looks like a useful tool, but your answer provides very little information about it. Could you edit your answer to include some info about how it works and perhaps a screenshot?
–
nhinkle♦Jun 5 '11 at 17:18

This looks great! htop and qps are well-established tools, but they don't display per-process history of CPU and memory usage. The Windows Process Explorer has a lot of useful features that I would be happy to find in a unix tool.
–
Eldritch ConundrumOct 20 '12 at 10:40

it lacks sorting or finding a process. if you have tons of processes, you can't locate yours.
–
Berry TsakalaFeb 25 '14 at 16:45